EP1684274A3 - Élément de diffraction et appareil de lecture optique équipé de celui-ci - Google Patents

Élément de diffraction et appareil de lecture optique équipé de celui-ci Download PDF

Info

Publication number
EP1684274A3
EP1684274A3 EP05257982A EP05257982A EP1684274A3 EP 1684274 A3 EP1684274 A3 EP 1684274A3 EP 05257982 A EP05257982 A EP 05257982A EP 05257982 A EP05257982 A EP 05257982A EP 1684274 A3 EP1684274 A3 EP 1684274A3
Authority
EP
European Patent Office
Prior art keywords
area
diffraction element
optical pick
diffraction
same
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05257982A
Other languages
German (de)
English (en)
Other versions
EP1684274B1 (fr
EP1684274A2 (fr
Inventor
Bong-Gi Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1684274A2 publication Critical patent/EP1684274A2/fr
Publication of EP1684274A3 publication Critical patent/EP1684274A3/fr
Application granted granted Critical
Publication of EP1684274B1 publication Critical patent/EP1684274B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
EP05257982A 2005-01-20 2005-12-22 Élément de diffraction et appareil de lecture optique équipé de celui-ci Expired - Fee Related EP1684274B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050005474A KR100754517B1 (ko) 2005-01-20 2005-01-20 회절소자 및 이를 포함하는 광픽업장치

Publications (3)

Publication Number Publication Date
EP1684274A2 EP1684274A2 (fr) 2006-07-26
EP1684274A3 true EP1684274A3 (fr) 2006-09-20
EP1684274B1 EP1684274B1 (fr) 2009-03-04

Family

ID=36202455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05257982A Expired - Fee Related EP1684274B1 (fr) 2005-01-20 2005-12-22 Élément de diffraction et appareil de lecture optique équipé de celui-ci

Country Status (5)

Country Link
US (1) US7609607B2 (fr)
EP (1) EP1684274B1 (fr)
KR (1) KR100754517B1 (fr)
CN (1) CN100395827C (fr)
DE (1) DE602005013054D1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7245407B2 (en) * 2002-06-10 2007-07-17 Matsushita Electric Industrial Co., Ltd. Complex objective lens compatible with information media of different thicknesses
KR100765393B1 (ko) * 2005-07-11 2007-10-10 엘지전자 주식회사 부빔의 각도 조정이 필요없는 광 디스크 장치의 광 픽업
CN101140772B (zh) * 2006-09-07 2012-10-10 松下电器产业株式会社 光学头和光盘装置
WO2008041330A1 (fr) * 2006-10-04 2008-04-10 Pioneer Corporation Dispositif de lecture
JP2009223936A (ja) 2008-03-14 2009-10-01 Ricoh Co Ltd 光ピックアップおよびこれを用いる光情報処理装置
JP2009223937A (ja) 2008-03-14 2009-10-01 Ricoh Co Ltd 光ピックアップおよびこれを用いる光情報処理装置
JP5178339B2 (ja) * 2008-06-20 2013-04-10 三洋電機株式会社 光ピックアップ装置
JP5142879B2 (ja) * 2008-08-06 2013-02-13 株式会社日立メディアエレクトロニクス 光ピックアップおよび光ディスク装置
JP5433533B2 (ja) * 2010-09-03 2014-03-05 株式会社日立メディアエレクトロニクス 光ピックアップ装置および光ディスク装置
CN102736152A (zh) * 2011-04-13 2012-10-17 中国科学院微电子研究所 一种偶次级透射光栅
US11867556B2 (en) 2015-07-29 2024-01-09 Samsung Electronics Co., Ltd. Spectrometer including metasurface
US11268854B2 (en) 2015-07-29 2022-03-08 Samsung Electronics Co., Ltd. Spectrometer including metasurface
US10514296B2 (en) 2015-07-29 2019-12-24 Samsung Electronics Co., Ltd. Spectrometer including metasurface
WO2017184109A1 (fr) * 2016-04-18 2017-10-26 Hewlett-Packard Development Company, L.P. Détection simultanée de multiples spectres de rayonnement diffusé

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378438A2 (fr) * 1989-01-13 1990-07-18 Sharp Kabushiki Kaisha Dispositif de tête optique
US20040081064A1 (en) * 2002-10-22 2004-04-29 Hitachi, Ltd. Optical pickup and optical information recording apparatus using the same
US20050002313A1 (en) * 2003-04-11 2005-01-06 Kenichi Hayashi Optical head device, diffraction element and manufacturing method for diffraction element

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675300B2 (ja) 1988-04-11 1994-09-21 三菱電機株式会社 光学式ヘッド装置
JPH0227534A (ja) 1988-07-16 1990-01-30 Mitsubishi Electric Corp 光学式ヘッド装置
US5066138A (en) * 1988-06-16 1991-11-19 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp Optischer Kopf mit Kippkorrekturservomechanismus.
US4983017A (en) * 1988-08-02 1991-01-08 Sharp Kabushiki Kaisha Optical head device for reading information stored in a recording medium
US5835471A (en) * 1995-06-12 1998-11-10 Canon Kabushiki Kaisha Optical information recording and/or reproducing apparatus
JP3549301B2 (ja) * 1995-09-08 2004-08-04 三菱電機株式会社 光ヘッドのトラッキング誤差検出装置
JP3606961B2 (ja) 1995-09-25 2005-01-05 シャープ株式会社 光ピックアップ装置
JP3661694B2 (ja) * 1998-02-16 2005-06-15 株式会社日立製作所 光ヘッドおよび光ディスク装置
JP3371846B2 (ja) 1999-04-06 2003-01-27 日本電気株式会社 ホログラム素子
JP2001014717A (ja) * 1999-04-28 2001-01-19 Matsushita Electronics Industry Corp 光学装置
JP4085812B2 (ja) * 2000-09-06 2008-05-14 株式会社日立製作所 光ヘッドおよび光ディスク装置
JP2003091856A (ja) * 2001-09-18 2003-03-28 Sony Corp 光学ピックアップ
JP3834810B2 (ja) * 2001-09-19 2006-10-18 日本電気株式会社 光ヘッド装置
US7161890B2 (en) * 2002-03-06 2007-01-09 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information device using this and computer optical disk player car navigation system optical disk recorder and optical disk server using this optical information device
JP2004091856A (ja) 2002-08-30 2004-03-25 Sumitomo Metal Ind Ltd 酸洗鋼板の製造方法及び酸洗装置
JP2004334962A (ja) * 2003-05-06 2004-11-25 Sony Corp 光ヘッド及び光記録媒体記録再生装置
TWI325078B (en) * 2003-10-15 2010-05-21 Hon Hai Prec Ind Co Ltd Planar light device and liquid crystal display

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378438A2 (fr) * 1989-01-13 1990-07-18 Sharp Kabushiki Kaisha Dispositif de tête optique
US20040081064A1 (en) * 2002-10-22 2004-04-29 Hitachi, Ltd. Optical pickup and optical information recording apparatus using the same
US20050002313A1 (en) * 2003-04-11 2005-01-06 Kenichi Hayashi Optical head device, diffraction element and manufacturing method for diffraction element

Also Published As

Publication number Publication date
DE602005013054D1 (de) 2009-04-16
EP1684274B1 (fr) 2009-03-04
US7609607B2 (en) 2009-10-27
CN1808576A (zh) 2006-07-26
EP1684274A2 (fr) 2006-07-26
KR20060084689A (ko) 2006-07-25
KR100754517B1 (ko) 2007-09-03
US20060158996A1 (en) 2006-07-20
CN100395827C (zh) 2008-06-18

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